Improvement in machine for tonguing and grooving



tltttrd (States @anni @ma PETER. GEISER ANDL. P. THOMPSON, OFWAYNESBOROUGH, PENNSYL- l VANIA; SAID THOMPSON ASSIGNS TO SAID GEISER.

Letters Patent No. 106,930, dated August 30. 1870.

IMPROVEMENT IN MACHINE FOR TNG-UING-.AND GROOVING.

The Schedule referred to in these Letters Patent and making part of thesanney -To all whom it may concern:

.Be it known that we, PETER GErsEn and L. P.

THOMPSON, of VVaynesborough, in the county of Franklin and State ofPennsylvania, have invented a new and useful Improvement inShaping-Machines for Tonguing and Grooving Flooring; and wc do herebydeclare .that the following is a full, clear, and exact description ofthe same, reference being had to the an- I Oui-.invention consists inimproved devices for holdl ing vand moving the board subjected 'to theaction of the cutters. i

In the annexed drawings- A represents the frame of the machine.

Bis the rotating cutter,formed to cut the tongue or groove, as required.

rThe board to be cutis carried upon a guide-board,

This guide-board has on its lower face a rack engaged bythe teeth of thespur-wheel 1),.whicl1 is driven by any convenient power. This spur-wheelcauses the guide-board G and board C' to be cut, to move forward at aregulated speed, so that the cutters may be made to out against thegrain of the Wood, the board being moved by a power independent of thecutters'.

In order that the board C to be cut may be closely compressed upon theguide-board at the edge where the cutters are acting upon it, a groove,c, is formed H, substantially as set forth.

near the edge of the guide-board nearest the cutter, and on the upperface thereof, so that the pressure of the wheel E may be applied to theedge ofthe board C, on which it rests.

The wheel is att-ached toan arm, E', extending upward, and hinged to theceiling of the shop.

The amount of pressureupou the wheel E is regulated by the brace F, alsohinged to the ceiling, and

having an extension-arm,.F,conueoted to it by a clamping-screwl passingthrough a slot in the arm which is hinged to the arm E'.

The adjustable brace G holds the arm E' and prevents any irregularlateral motion ofthe roller E.

When not required for use, the compressing mechanism may be folded upagainst and attached to the ceiling.

Iusbtead of using the collar asa guide for controlling the movements ofthe feed-board,`as iu shaping-machines asordinarily constructed, weattach to the table `a straight guide-board, H, against which the edgeof the feed-board C bears, so that it can only move in a straightdirection, the edge ot the board to be cut bcing carried against thecutters.

What we claim Aas our invention, and desire to secure by Letters Patent,is

i 1 The feed-board C, when constructed with a groove, c, in combinationwith the roller E and gude-board 2. The arrangementof the arm E', andextensionbrace-F F', for regulating the. pressure of the roller E,substantially as set forth.

In testimony whereof we have signed our names to this specitication inthe presence of two subscribing witnesses.

PETER GEISER. L. P. THOMPSON.

Witnesses:

WM. J, BlKLE, ISAAC B. SIPRENKLE.

